Level 3
The figure is made up of a big quadrant OWY a small quadrant OVZ and a square VXZO. The radius of the big quadrant OWY is 12cm. The area of the big quadrant is twice the area of the small quadrant OVZ. Using the calculator value of π, find the area of the shaded parts, correct to 2 decimal places.
5 m
Level 3
In the figure, ABCD is a square of sides 24 cm. G is the midpoint of BD. DE = EC. DG is 4 times of FG. AH is 38 of AG. Find the total shaded area.
5 m
Level 3
The figure, not drawn to scale, is made up of a square, a quadrant and a semicircle. WXYZ is a square of side 28 cm. Find the area of the shaded part. (Take π = 227)
5 m
Level 3 PSLE
The figure is made up of a rectangle, semicircles and quarter circles. The area of the rectangle is 216 cm2.
1. Find the perimeter of the rectangle.
2. Find the area of the figure. Take π = 3.14
5 m
Level 3
Mr Chen used some identical rectangular tiles and black square tiles to decorate part of a floor as shown. The length of each tile is 34.5 cm.
1. Find the width of each tile.
2. Find the total area of the shaded regions.
5 m
Level 3
Jennifer draws 5 different squares. How many sides does she draw in all?
4 m
Level 3
Serena had 134 round and square shaped cookies. After giving away 13 of her round shaped cookies and 14 of her square shaped cookies, she had an equal number of round and square shaped cookies. How many square shaped cookies did she have at first?
4 m